Improvement in portable iron derrick



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SAMUELV RIDER, or 01E err-Y, PENNSYLVANIA, ASSIGNOR To HIMSELE, vsnzLMUEL R.

GRIFFITH,

ALBERT R. GRIFFITH, AND ANDREW w. cox,l on SAME PEAGE.

Letters Patent No. 106,408, dated August 16, 1870.

tEhe Schedule referred to in these Letters Patent and making .part of the same.

To all whom 'tt may concern.- v l Be it known thatL-SAMUEERIDER, of Oil City, inthe county oi' vena-ngo andState of Pennsylvania, have invented a new and ,useful Portable Iron Derrick for Petroleum-Wells, Salti-Wells, Sto.; and I do hereby declare that the following's a full, clear, and exact description thereof, suiicientto enable those skilled in the art to which my invention appertaius to make and use the saine, reference being had to the accompanying dra-wing making part of this specification, in which- Figure 1 is a side elevation of rnyiniproven'ient. Figure 2 is a top View, partly in Section.

Figure 3 is a sectional View, hereinafter more particularly referred to.

In drilling oil, salt, and other wells, the dci-rick and appendages are usually triade of wood, fastened with nails, and, .if sufficiently strong, they are necessarily clumsy and unwieldy, rendering it impractieable to take them apart and transport them from place to place; they are also easily destroyed by fire in casesii'equently occur inv oil-wells. l

The object of my invention is to obvrate tnese ditli- `cnlties by constructinga portable', durable, and :tireot' spontaneous combustion and coniiagration which andsimilar purposes; and

. It Aconsists in the application of iron to theconstruction oty a derrick, \vorking'-beain, Samson-post,

jack-posts, pump-rig, engine-house, 85e.; also' in the peculiar construction and arrangement ofthe part-s.

Tbe'derrick is made of any suitableshape and dimensions, but I prefer to make it of tapering form, as shown in the drawing.

It is constructed of strips of plate-iron A, each strip bent longitudinally, so as to form two sides of a quadrangle, connected at top and bottom and intermediate positions by braces B of plateiron, secured by bolts, rivets, or screws, and strengthened by diagonal braces C of rod-iron, secured in any suitable manner.

lapping each other and secured by bolts, rivets, or'

screws,so as to be easily taken down, transported, and1 put together.l Y

rI he pump-rig is connected by a belt with the shaft of the main pulley G, and is provided with a loose pulley, I, to facilitate the winding and nnwinding of' the rope or chain J, connected with the sand-pump,

",which is accomplished by means of ba clutch or other suitable device.

.lhe dei-rick is provided with a ladder L, the rails consisting of strips of plate-iron, and the-rounds oi" rod-iron, secured by nuts and screw-threads, so'as to` be easily taken apart and replaced.

What 1 claim as new, and desire to secure by Letters Patent, isproof'derrick and its appendages, for'joilfand saltrells 1. The portable del-rick herein described, when constructed ot strips of plate-iron A, bent longitudinally 'as shown,and connected by braces B of plate-iron, and strengthened by diagonal braces O yot' rod-iron, andA when made in sections and secured by the angular pla-tes D, clamps E, and keys F, all as shown and described, for the purpose-specified. l

2. The working-beam K, samsonA-post M,jackposts N, and pump-rig P, in combination with tlbe portable iron derrick, constructed and arranged as shown and described.

SAMUEL RIDER. Witnesses:

`B. POMER,

FRED. 1. J AMES. 

